自学教程：C++ CFG函数代码示例

LRESULT CDlgPublishHtml::OnRefresh(WPARAM wParam, LPARAM lParam){	// Get the target path	CWinFile::GetPathFromFileName( m_sMain, m_szPath );		// Get filename	char fname[ CWF_STRSIZE ];	CWinFile::GetFileNameFromPath( m_sMain, fname );	// Get filename	m_sFilename = CFG().GetSz( "Settings", "HtmlPubFilename" );	if ( m_sFilename.IsEmpty() ) m_sFilename = fname;//	m_sFilename = fname;	// Add a few choice filenames	m_comboFilename.AddString( "Index.htm" );	m_comboFilename.AddString( fname );	if ( strcmpi( m_sFilename, fname ) && strcmpi( m_sFilename, "Index.htm" ) )		m_comboFilename.AddString( m_sFilename );	// Initialize folder	m_sDir = CFG().GetSz( "Settings", "HtmlPubDir" );	UpdateData( FALSE );	FillCombo();	DoEnable();	return 1;}

zbar_image_scanner_t *zbar_image_scanner_create (){    zbar_image_scanner_t *iscn = calloc(1, sizeof(zbar_image_scanner_t));    if(!iscn)        return(NULL);    iscn->dcode = zbar_decoder_create();    iscn->scn = zbar_scanner_create(iscn->dcode);    if(!iscn->dcode || !iscn->scn) {        zbar_image_scanner_destroy(iscn);        return(NULL);    }    zbar_decoder_set_userdata(iscn->dcode, iscn);    zbar_decoder_set_handler(iscn->dcode, symbol_handler);#ifdef ENABLE_QRCODE    iscn->qr = _zbar_qr_create();#endif    /* apply default configuration */    CFG(iscn, ZBAR_CFG_X_DENSITY) = 1;    CFG(iscn, ZBAR_CFG_Y_DENSITY) = 1;    zbar_image_scanner_set_config(iscn, 0, ZBAR_CFG_POSITION, 1);    zbar_image_scanner_set_config(iscn, 0, ZBAR_CFG_UNCERTAINTY, 2);    zbar_image_scanner_set_config(iscn, ZBAR_QRCODE, ZBAR_CFG_UNCERTAINTY, 0);    zbar_image_scanner_set_config(iscn, ZBAR_CODE128, ZBAR_CFG_UNCERTAINTY, 0);    zbar_image_scanner_set_config(iscn, ZBAR_CODE93, ZBAR_CFG_UNCERTAINTY, 0);    zbar_image_scanner_set_config(iscn, ZBAR_CODE39, ZBAR_CFG_UNCERTAINTY, 0);    zbar_image_scanner_set_config(iscn, ZBAR_CODABAR, ZBAR_CFG_UNCERTAINTY, 1);    zbar_image_scanner_set_config(iscn, ZBAR_COMPOSITE, ZBAR_CFG_UNCERTAINTY, 0);    return(iscn);}

static inline int decoder_set_config_int (zbar_decoder_t *dcode,                                          zbar_symbol_type_t sym,                                          zbar_config_t cfg,                                          int val){    switch(sym) {#ifdef ENABLE_I25    case ZBAR_I25:        CFG(dcode->i25, cfg) = val;        break;#endif#ifdef ENABLE_CODE39    case ZBAR_CODE39:        CFG(dcode->code39, cfg) = val;        break;#endif#ifdef ENABLE_CODE128    case ZBAR_CODE128:        CFG(dcode->code128, cfg) = val;        break;#endif#ifdef ENABLE_PDF417    case ZBAR_PDF417:        CFG(dcode->pdf417, cfg) = val;        break;#endif    default:        return(1);    }    return(0);}

voidinfluxdb_put(const char *id, double value){  char url[1024];  cfg_root(root);  const char *urlprefix = cfg_get_str(root, CFG("influxdb", "url"), NULL);  const char *db        = cfg_get_str(root, CFG("influxdb", "db"), NULL);  const char *username  = cfg_get_str(root, CFG("influxdb", "username"), NULL);  const char *password  = cfg_get_str(root, CFG("influxdb", "password"), NULL);  if(urlprefix == NULL || db == NULL || username == NULL || password == NULL)    return;  snprintf(url, sizeof(url), "%s/db/%s/series?u=%s&p=%s",           urlprefix, db, username, password);  htsmsg_t *doc = htsmsg_create_list();  htsmsg_t *item = htsmsg_create_map();  htsmsg_add_str(item, "name", id);  htsmsg_t *columns = htsmsg_create_list();  htsmsg_add_str(columns, NULL, "value");  htsmsg_add_msg(item, "columns", columns);  htsmsg_t *points = htsmsg_create_list();  htsmsg_t *point = htsmsg_create_list();  htsmsg_add_dbl(point, NULL, value);  htsmsg_add_msg(points, NULL, point);  htsmsg_add_msg(item, "points", points);  htsmsg_add_msg(doc, NULL, item);  char *data = htsmsg_json_serialize_to_str(doc, 0);  htsmsg_destroy(doc);  size_t len = strlen(data);  FILE *f = fmemopen(data, len, "r");  CURL *curl = curl_easy_init();  curl_easy_setopt(curl, CURLOPT_URL, url);  curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);  curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1L);  curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, &libsvc_curl_waste_output);  curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "POST");  curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);  curl_easy_setopt(curl, CURLOPT_READDATA, (void *)f);  curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE, (curl_off_t)len);  CURLcode result = curl_easy_perform(curl);  curl_easy_cleanup(curl);  if(result)    trace(LOG_ERR, "CURL Failed %s error %d", url, result);  fclose(f);  free(data);}

zbar_decoder_t *zbar_decoder_create (){    zbar_decoder_t *dcode = calloc(1, sizeof(zbar_decoder_t));    dcode->buf_alloc = BUFFER_MIN;    dcode->buf = malloc(dcode->buf_alloc);    /* initialize default configs */#ifdef ENABLE_EAN    dcode->ean.enable = 1;    dcode->ean.ean13_config = ((1 << ZBAR_CFG_ENABLE) |                               (1 << ZBAR_CFG_EMIT_CHECK));    dcode->ean.ean8_config = ((1 << ZBAR_CFG_ENABLE) |                              (1 << ZBAR_CFG_EMIT_CHECK));    dcode->ean.upca_config = 1 << ZBAR_CFG_EMIT_CHECK;    dcode->ean.upce_config = 1 << ZBAR_CFG_EMIT_CHECK;    dcode->ean.isbn10_config = 1 << ZBAR_CFG_EMIT_CHECK;    dcode->ean.isbn13_config = 1 << ZBAR_CFG_EMIT_CHECK;# ifdef FIXME_ADDON_SYNC    dcode->ean.ean2_config = 1 << ZBAR_CFG_ENABLE;    dcode->ean.ean5_config = 1 << ZBAR_CFG_ENABLE;# endif#endif#ifdef ENABLE_I25    dcode->i25.config = 1 << ZBAR_CFG_ENABLE;    CFG(dcode->i25, ZBAR_CFG_MIN_LEN) = 6;#endif#ifdef ENABLE_DATABAR    dcode->databar.config = ((1 << ZBAR_CFG_ENABLE) |                             (1 << ZBAR_CFG_EMIT_CHECK));    dcode->databar.config_exp = ((1 << ZBAR_CFG_ENABLE) |                                 (1 << ZBAR_CFG_EMIT_CHECK));    dcode->databar.csegs = 4;    dcode->databar.segs = calloc(4, sizeof(*dcode->databar.segs));#endif#ifdef ENABLE_CODABAR    dcode->codabar.config = 1 << ZBAR_CFG_ENABLE;    CFG(dcode->codabar, ZBAR_CFG_MIN_LEN) = 4;#endif#ifdef ENABLE_CODE39    dcode->code39.config = 1 << ZBAR_CFG_ENABLE;    CFG(dcode->code39, ZBAR_CFG_MIN_LEN) = 1;#endif#ifdef ENABLE_CODE93    dcode->code93.config = 1 << ZBAR_CFG_ENABLE;#endif#ifdef ENABLE_CODE128    dcode->code128.config = 1 << ZBAR_CFG_ENABLE;#endif#ifdef ENABLE_PDF417    dcode->pdf417.config = 1 << ZBAR_CFG_ENABLE;#endif#ifdef ENABLE_QRCODE    dcode->qrf.config = 1 << ZBAR_CFG_ENABLE;#endif    zbar_decoder_reset(dcode);    return(dcode);}

void Timer<ID>::init(void) {  // Set Waveform Generator Mode to Normal  // Set Prescaler to 0  REG(timer<ID>::control) =     CFG(timer<ID>::control::wgm::normal) |      CFG(timer<ID>::control::prescaler::template value<1>);    // Set Counter to 0  REG(timer<ID>::counter) = VAL(timer<ID>::counter, 0);}

static void *lisp_merge_config (apr_pool_t * pool, void * base_cfg, void * add_cfg){  return    ((SERVER_SPECIFIED_P (CFG (add_cfg)))          ? (copy_lisp_cfg (pool, add_cfg))	       : (SERVER_SPECIFIED_P (CFG (base_cfg)))	            ? (copy_lisp_cfg (pool, base_cfg))		         : (default_lisp_cfg (pool)));}

void CGameControllerOpenFNG::HandleMelt(int Melter, int Meltee){	CCharacter *pMeltee = CHAR(Meltee);	if (!pMeltee) //due to HandleFreeze, i suspect this COULD also possibly happen. 	{		D("no pMeltee in HandleMelt(%d, %d)", Melter, Meltee);		return;	}	int MeltTeam = pMeltee->GetPlayer()->GetTeam()&1;	m_aTeamscore[MeltTeam] += CFG(MeltTeamscore);	if (CFG(MeltTeamscore) && CFG(MeltBroadcast))	{		char aBuf[64];		str_format(aBuf, sizeof aBuf, "%s melted (%+d)", GetTeamName(MeltTeam), CFG(MeltTeamscore));		m_Broadcast.Update(-1, aBuf, CFG(BroadcastTime) * TS);	}	CPlayer *pPlMelter = TPLAYER(Melter);	if (!pPlMelter)		return;	pPlMelter->m_Score += CFG(MeltScore);	SendFreezeKill(Melter, Meltee, WEAPON_HAMMER);	if (pPlMelter->GetCharacter() && CFG(MeltLoltext) && CFG(MeltScore))	{		char aBuf[64];		str_format(aBuf, sizeof aBuf, "%+d", CFG(MeltScore));		GS->CreateLolText(pPlMelter->GetCharacter(), false, vec2(0.f, -50.f), vec2(0.f, 0.f), 50, aBuf);	}}

void CDlgSimpleSettings::OnOK() {	UpdateData( TRUE );	CFG().SetValue( "CMSettings", "EmailBtn", (DWORD)( m_bEmail ? 1 : 0 ) );	CFG().SetValue( "CMSettings", "PrintBtn", (DWORD)( m_bPrint ? 1 : 0 ) );	CFG().SetValue( "CMSettings", "FtpBtn", (DWORD)( m_bFtp ? 1 : 0 ) );	CFG().SetValue( "CMSettings", "SaveBtn", (DWORD)( m_bFtp ? 1 : 0 ) );	CFG().SetValue( "CMSettings", "SetupBtn", (DWORD)( m_bSetup ? 1 : 0 ) );	CFG().SetValue( "CMSettings", "XMax", (DWORD)strtoul( m_xMax, NULL, 10 ) );	CFG().SetValue( "CMSettings", "YMax", (DWORD)strtoul( m_yMax, NULL, 10 ) );	int sel = m_comboImage.GetCurSel();	if ( sel != -1 )	{	DWORD driver = m_comboImage.GetItemData( sel );		CFG().SetValue( "CMSettings", "Driver", driver );	} // end if	sel = m_comboFtpServer.GetCurSel();	if ( sel != -1 )	{	char txt[ CWF_STRSIZE ];		m_comboFtpServer.GetLBText( sel, txt );		CFG().SetValue( "CMSettings", "FtpServer", txt );		} // end if	CDialog::OnOK();}

void CGameControllerOpenFNG::DoBroadcasts(bool ForceSend){	if (m_GameOverTick != -1)		return;	if (max(m_aTeamscore[0], m_aTeamscore[1]) + CFG(AllYourBase) >= CFG(Scorelimit))		m_Broadcast.Update(-1, CFG(AllYourBaseMsg), -1);	m_Broadcast.SetDef(CFG(DefBroadcast));	m_Broadcast.Operate();}

void CGameControllerBoomFNG::DoBroadcasts(bool ForceSend){	if (m_GameOverTick != -1)		return;	if (max(m_aTeamscore[0], m_aTeamscore[1]) + CFG(AllYourBase) >= CFG(Scorelimit))		m_Broadcast.Update(-1, "ALL YOUR BASE ARE BELONG TO US.", -1);	m_Broadcast.SetDef(CFG(DefBroadcast));	m_Broadcast.Operate();}

void CGameControllerSoloFNG::DoHookers(){	for(int i = 0; i < MAX_CLIENTS; i++)	{		CCharacter *pChr = CHAR(i);		if (!pChr)			continue;				int Hooking = pChr->GetHookedPlayer();		if (Hooking >= 0)		{			CCharacter *pVic = CHAR(Hooking);						if (!pVic || (/*pVic->GetPlayer()->GetTeam() != pChr->GetPlayer()->GetTeam() && */pChr->GetHookTick() < CFG(HookRegisterDelay)))				Hooking = -1;					}		int HammeredBy = pChr->LastHammeredBy();		pChr->ClearLastHammeredBy();		if (Hooking >= 0)		{			CCharacter *pVic = CHAR(Hooking);			if (pVic)			{				//bool SameTeam = pChr->GetPlayer()->GetTeam() == pVic->GetPlayer()->GetTeam();				m_aLastInteraction[Hooking] = /*SameTeam ? -1 : */ i;			}		}		if (HammeredBy >= 0)		{				CCharacter *pHam = CHAR(HammeredBy);			if (pHam)			{				//bool SameTeam = pChr->GetPlayer()->GetTeam() == pHam->GetPlayer()->GetTeam();				m_aLastInteraction[i] = /*SameTeam ? -1 : */ HammeredBy;				if (/* !SameTeam &&*/ CFG(HammerFreeze) && pChr->GetFreezeTicks() <= 0)				{					pChr->Freeze(CFG(HammerFreeze) * TS, HammeredBy);					m_aFrozenBy[i] = HammeredBy; //suppress kill event being generated				}			}			else				m_aLastInteraction[i] = -1;		}	}}

BOOL CDlgSimpleSettings::OnInitDialog() {	CDialog::OnInitDialog();	// Update flags	m_bEmail = CFG().GetDword( "CMSettings", "EmailBtn", (DWORD)1 ) != 0;	m_bPrint = CFG().GetDword( "CMSettings", "PrintBtn", (DWORD)1 ) != 0;	m_bFtp = CFG().GetDword( "CMSettings", "FtpBtn", (DWORD)1 ) != 0;	m_bSave = CFG().GetDword( "CMSettings", "SaveBtn", (DWORD)1 ) != 0;	m_bSetup = CFG().GetDword( "CMSettings", "SetupBtn", (DWORD)1 ) != 0;	m_sFtpFilename = CFG().GetSz( "CMSettings", "FtpFilename", "webcam.jpg" );	m_xMax = CFG().GetSz( "CMSettings", "XMax", "800" );	m_yMax = CFG().GetSz( "CMSettings", "YMax", "600" );	UpdateData( FALSE );	FillImageCombo();	FillFtpCombo();	DoEnable();	return TRUE;  // return TRUE unless you set the focus to a control	              // EXCEPTION: OCX Property Pages should return FALSE}

static inline signed char i25_decode_end (zbar_decoder_t *dcode){    i25_decoder_t *dcode25 = &dcode->i25;    /* check trailing quiet zone */    unsigned quiet = get_width(dcode, 0);    if((quiet && quiet < dcode25->width * 3 / 8) ||            decode_e(get_width(dcode, 1), dcode25->width, 45) > 2 ||            decode_e(get_width(dcode, 2), dcode25->width, 45) > 2) {        dprintf(3, " s=%d q=%d [invalid qz]/n", dcode25->width, quiet);        return(ZBAR_NONE);    }    /* check exit condition */    unsigned char E = decode_e(get_width(dcode, 3), dcode25->width, 45);    if((!dcode25->direction)            ? E - 3 > 4            : (E > 2 ||               decode_e(get_width(dcode, 4), dcode25->width, 45) > 2))        return(ZBAR_NONE);    if(dcode25->direction) {        /* reverse buffer */        dprintf(2, " (rev)");        int i;        for(i = 0; i < dcode25->character / 2; i++) {            unsigned j = dcode25->character - 1 - i;            char c = dcode->buf[i];            dcode->buf[i] = dcode->buf[j];            dcode->buf[j] = c;        }    }    if(dcode25->character < CFG(*dcode25, ZBAR_CFG_MIN_LEN) ||            (CFG(*dcode25, ZBAR_CFG_MAX_LEN) > 0 &&             dcode25->character > CFG(*dcode25, ZBAR_CFG_MAX_LEN))) {        dprintf(2, " [invalid len]/n");        dcode->lock = 0;        dcode25->character = -1;        return(ZBAR_NONE);    }    dcode->buflen = dcode25->character;    dcode->buf[dcode25->character] = '/0';    dprintf(2, " [valid end]/n");    dcode25->character = -1;    return(ZBAR_I25);}

void CDlgPublishHtml::OnChangeDir() {	UpdateData( TRUE );	// Save publish folder	CFG().SetValue( "Settings", "HtmlPubDir", (LPCTSTR)m_sDir );	}

  static void recv(T& ret) {    // Wait for data to be received    while( ! (REG(uart<ID>::control) & CFG(uart<ID>::control::flag::recvend)));    // Get and return received data from buffer    ret = (T)REG(uart<ID>::data);  }

void CDlgSimpleSettings::FillImageCombo(){	m_comboImage.ResetContent();	CCapture	cap;	DWORD		drivers = cap.GetNumDrivers();	// For each driver	for ( DWORD i = 0; i < drivers; i++ )	{		char				show[ CWF_STRSIZE ];		CAPTUREDRIVERINFO	ci;		if ( cap.GetDriverInfo( i, &ci ) )		{			sprintf( show, "%s (%s)", ci.szName, ci.szVer );			int index = m_comboImage.AddString( show );			if ( index != LB_ERR ) m_comboImage.SetItemData( index, ci.index );		} // end if	} // end for	// Select first driver	m_comboImage.SetCurSel( CFG().GetDword( "CMSettings", "Driver", (DWORD)0 ) );}

void mainUI::on_tool_config_clicked(){  QString ds = getSelectedDS();  if(ds.isEmpty()){ return; }  LPConfig CFG(this);  CFG.loadDataset(ds, RLIST.contains(ds));  CFG.exec();  //Now check for return values and update appropriately  bool change = false;  if(CFG.localChanged){    LPBackend::setupDataset(ds, CFG.localSchedule, CFG.localSnapshots);    change = true;  }  if(CFG.remoteChanged){    change = true;    if(CFG.isReplicated){      LPBackend::setupReplication(ds, CFG.remoteHost, CFG.remoteUser, CFG.remotePort, CFG.remoteDataset, CFG.remoteFreq);      QMessageBox::information(this,tr("Reminder"),tr("Don't forget to save your SSH key to a USB stick so that you can restore your system from the remote host later!!"));    }else{      LPBackend::removeReplication(ds);    }  }  //Now update the UI if appropriate  if(change){    setupUI();  }}

bool ContextPrivate::unload( const QString &pFileName ){	if( !QFile( pFileName ).exists() )	{		qWarning() << pFileName << "doesn't exist";		return( false );	}	QSettings										 CFG( pFileName, QSettings::IniFormat );//	int												 VER = 1;//	bool											 RET = false;	if( CFG.status() != QSettings::NoError )	{		qWarning() << pFileName << "can't load";		return( false );	}	if( CFG.format() != QSettings::IniFormat )	{		qWarning() << pFileName << "bad format";		return( false );	}	mActive = false;	mActive = true;	return( true );}

void LPMain::openConfigGUI(){  qDebug() << "Open Configuration UI";  QString ds = ui->combo_pools->currentText();  if(ds.isEmpty()){ return; }  LPConfig CFG(this);  CFG.loadDataset(ds, LPBackend::listReplicationTargets().contains(ds));  CFG.exec();  //Now check for return values and update appropriately  bool change = false;  if(CFG.localChanged){    ui->statusbar->showMessage(QString(tr("Configuring dataset: %1")).arg(ds),0);    qDebug() << "Settings up local snapshots:" << ds << "Frequency:" << CFG.localSchedule;    LPBackend::setupDataset(ds, CFG.localSchedule, CFG.localSnapshots);    ui->statusbar->clearMessage();    change = true;  }  if(CFG.remoteChanged){    change = true;    if(CFG.isReplicated){      ui->statusbar->showMessage(QString(tr("Configuring replication: %1")).arg(ds),0);      qDebug() << "Setting up Replication:" << ds << " Frequency:" << CFG.remoteFreq;      LPBackend::setupReplication(ds, CFG.remoteHost, CFG.remoteUser, CFG.remotePort, CFG.remoteDataset, CFG.remoteFreq);      QMessageBox::information(this,tr("Reminder"),tr("Don't forget to save your SSH key to a USB stick so that you can restore your system from the remote host later!!"));    }else{      ui->statusbar->showMessage(QString(tr("Removing replication: %1")).arg(ds),0);      qDebug() << "Removing Replication:" << ds;      LPBackend::removeReplication(ds);    }    ui->statusbar->clearMessage();  }  //Now update the UI if appropriate  if(change){    updateTabs();  }	}

int zbar_image_scanner_set_config (zbar_image_scanner_t *iscn,								   zbar_symbol_type_t sym,								   zbar_config_t cfg,								   int val){	if(cfg < ZBAR_CFG_POSITION)		return(zbar_decoder_set_config(iscn->dcode, sym, cfg, val));	if(sym > ZBAR_PARTIAL)		return(1);	if(cfg >= ZBAR_CFG_X_DENSITY && cfg <= ZBAR_CFG_Y_DENSITY) {		CFG(iscn, cfg) = val;		return(0);	}	if(cfg > ZBAR_CFG_POSITION)		return(1);	cfg -= ZBAR_CFG_POSITION;	if(!val)		iscn->config &= ~(1 << cfg);	else if(val == 1)		iscn->config |= (1 << cfg);	else		return(1);	return(0);}

zbar_image_scanner_t *zbar_image_scanner_create (){    zbar_image_scanner_t *iscn = calloc(1, sizeof(zbar_image_scanner_t));    if(!iscn)        return(NULL);    iscn->dcode = zbar_decoder_create();    iscn->scn = zbar_scanner_create(iscn->dcode);    if(!iscn->dcode || !iscn->scn) {        zbar_image_scanner_destroy(iscn);        return(NULL);    }    /* apply default configuration */    CFG(iscn, ZBAR_CFG_X_DENSITY) = 16;    CFG(iscn, ZBAR_CFG_Y_DENSITY) = 16;    return(iscn);}

void CDlgImgView::Shutdown(){	char txt[ 64 ];	if ( GetWindowText( txt, sizeof( txt ) ) )		CFG().SaveWindowPos( GetSafeHwnd(), "RemoteVideoPos", txt, TRUE );	DestroyWindow();}

  static void send(T val) {    // Wait for empty transmit buffer    while( ! (REG(uart<ID>::control) & CFG(uart<ID>::control::flag::empty)));    // Put data into buffer    REG(uart<ID>::data) =      VAL(uart<ID>::data, val);  }